Home / 11,477.88-17,219.86-3,686.90

Finding the Fourth Proportional to 11,477.88, 17,219.86 and 3,686.90

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Solution

The fourth proportional to 11,477.88, 17,219.86 and 3,686.90 is: 5,531.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,477.88 : 17,219.86 = 3,686.90 : x
  2. Step 2: Convert to fraction form
    11,477.88/17,219.86 = 3,686.90/x
  3. Step 3: Cross multiply
    11,477.88x = 17,219.86 × 3,686.90
  4. Step 4: Simplify right side
    11,477.88x = 63,487,901.83
  5. Step 5: Solve for x
    x = 63,487,901.83/11,477.88
  6. Step 6: Final answer
    x = 5,531.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.